| Value | Category | 
|---|---|
| 01 | Work | 
| 02 | Property or entrepreneurial income | 
| 03 | Pension | 
| 04 | Unemployment benefits | 
| 05 | Illness or disability benefits | 
| 06 | Other social support | 
| 07 | Under state security or care | 
| 08 | Scholarship | 
| 09 | Apprenticeship | 
| 10 | Credits, savings, or capital sale | 
| 11 | Household support (dependent) | 
| 12 | Assistance from relatives in country | 
| 13 | Assistance from relatives, acquintances abroad | 
| 14 | Multiple sources | 
| 15 | Other | 
| 98 | Unknown |